mul24

Fast integer function to multiply 24-bit integer values.

gentype
mul24
(

gentype x,

gentype y)

Description

mul24 multiplies two 24-bit integer values
x and y. x and
y are 32-bit integers but only the low 24-bits are used
to perform the multiplication. mul24 should only be
used when values in x and y are in the
range [-223, 223-1] if
x and y are signed integers and in the range [0,
224-1] if x and y
are unsigned integers. If x and y are not in
this range, the multiplication result is implementation-defined.

Notes

Fast integer functions can be used for optimizing performance of kernels. We
use the generic type name gentype to indicate that the function can
take int, int2, int3, int4,
int8, int16, uint, uint2,
uint3, uint4, uint8, or uint16
as the type for the arguments.